diff --git a/src/components/floor-plan/modal/dimensionLine/DimensionLineSetting.jsx b/src/components/floor-plan/modal/dimensionLine/DimensionLineSetting.jsx
index e08bc839..e4807c36 100644
--- a/src/components/floor-plan/modal/dimensionLine/DimensionLineSetting.jsx
+++ b/src/components/floor-plan/modal/dimensionLine/DimensionLineSetting.jsx
@@ -9,7 +9,7 @@ import { canvasState, pitchTextSelector } from '@/store/canvasAtom'
 import { defaultSlope } from '@/store/commonAtom'
 import { re } from 'mathjs'
 import { basicSettingState } from '@/store/settingAtom'
-import { getChonByDegree } from '@/util/canvas-util'
+import { getChonByDegree, getDegreeByChon } from '@/util/canvas-util'
 
 export default function DimensionLineSetting(props) {
   const contextPopupPosition = useRecoilValue(contextPopupPositionState)
@@ -106,14 +106,14 @@ export default function DimensionLineSetting(props) {
   }
 
   const calculateLength = (originalLength, angle, angle1) => {
-    const slope1 = basicSetting.roofAngleSet !== 'slope' ? getChonByDegree(angle) : angle
-    const slope2 = basicSetting.roofAngleSet !== 'slope' ? getChonByDegree(angle1 ?? 0) : angle1
     if (!angle1) {
-      const angleInRadians = slope1 * (Math.PI / 180)
-      const result = Math.sqrt(Math.pow(originalLength * Math.tan(angleInRadians), 2) + Math.pow(originalLength, 2))
-      console.log(angleInRadians, result)
+      const slope1 = basicSetting.roofAngleSet !== 'slope' ? getDegreeByChon(angle) : angle
+      const result = Math.sqrt(Math.pow(originalLength * Math.tan((getDegreeByChon(slope1) * Math.PI) / 180), 2) + Math.pow(originalLength, 2))
+      console.log(result)
       return result
     } else {
+      const slope1 = basicSetting.roofAngleSet !== 'slope' ? getChonByDegree(angle) : angle
+      const slope2 = basicSetting.roofAngleSet !== 'slope' ? getChonByDegree(angle1 ?? 0) : angle1
       const numerator = Math.sqrt(Math.pow(slope1, 2) + 100 + Math.pow((10 * slope1) / slope2, 2)) * originalLength
       const denominator = Math.sqrt(Math.pow((10 * slope1) / slope2, 2) + 100)
       const result = numerator / denominator